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Cardiff

$859+ Cheap flights from Idaho to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CWL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Idaho to Cardiff

Keep the following information in mind while searching for Idaho to Cardiff flight deals. Data was last updated September 16, 2025.

Round-trip from

$859
(KLM)
From Idaho to Cardiff Wales
Search Deals

Find flight deals from Idaho to Cardiff

Cheapest flights from Idaho to Cardiff
Explore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This KLM deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:00 amBOI - CWL
2 stops24h 55mKLM
Wed 11/195:25 pmCWL - BOI
2 stops36h 00mKLM
Deal found 9/15$859
This Virgin Atlantic deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:35 amBOI - CWL
2 stops28h 20mVirgin Atlantic
Sun 12/75:30 pmCWL - BOI
2 stops37h 40mVirgin Atlantic
Deal found 9/15$949

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Idaho to Cardiff that are best for you.

Fly from

Idaho

Fly to

Cardiff

Route

Depart

Return

Price

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Mon 11/10

12:58 pm-4:55 pm

2 stops20h 57m

Cardiff Wales

Wed 11/19

5:25 pm-6:54 pm

2 stops32h 29m

$859

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Wed 12/3

5:35 am-4:55 pm

2 stops28h 20m

Cardiff Wales

Sun 12/7

5:30 pm-12:10 am

2 stops37h 40m

$949

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Wed 12/3

5:35 am-9:50 am

2 stops21h 15m

Cardiff Wales

Sun 12/7

10:20 am-12:10 am

2 stops44h 50m

$949

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Idaho to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Cardiff
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cardiff from Idaho?

    If you book a flight to Cardiff from Idaho, you will be flying to Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff.

  • How long is the flight from Idaho to Cardiff?

    KLM, Virgin Atlantic, and Delta can get you from Idaho to Cardiff in just under 20h 57m. Your travel time can differ by up to 7h 23m. There are 4745 mi between Idaho and Cardiff. This flight may include one or multiple stops.

  • Can I find deals for flights from Idaho to Cardiff that include hotel bookings?

    Yes. In addition to deals on Idaho to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Cardiff.

  • Can I find deals for business class flights from Idaho to Cardiff?

    Yes. Cheapflights offers flight deals from Idaho to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Cardiff?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Cardiff (average of $773). Flying from Idaho to Cardiff in June is currently the most expensive (average of $1,622). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry

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